Nikola is a static site and blog generator, written in Python. It can
use Mako and Jinja2 templates, and input in many popular markup
formats, such as reStructuredText and Markdown — and can even turn
IPython Notebooks into blog posts! It also supports image galleries,
and is multilingual. Nikola is flexible, and page builds are extremely fast,
courtesy of doit (rebuilding only what has been changed).

In the v6.3.0 announcement, it was promised that an install_bs3
command would be added to the Debian packages. The v6.3.0 packages
were released yesterday and they contain the promised patch. Please
use it to install the theme if you need it.